Alternative Technologies
Alternative technologies include the following:
- Anaerobic digestion
- Composting
- Fuel cells
- Fuels for automobiles (besides gasoline and diesel)
- Alcohol (either ethanol or methanol)
- Biodiesel
- Vegetable oil
- Greywater
- Solar panels
- Silicon-based
- Photosynthetic "Gratzel cells" (Titanium dioxide)
- Landfill gas extraction from landfills
- Mechanical biological treatment
- Recycling
- Wind generators
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Famous quotes containing the word alternative:
“If you have abandoned one faith, do not abandon all faith. There is always an alternative to the faith we lose. Or is it the same faith under another mask?”
—Graham Greene (1904–1991)